Attachment for internal-combustion engines.



E. T. SINCLAIR.

ATTACHMENT FOR INTERNAL COMBUSTION ENGINES.

-APPL|CAT|0N FILED MAR; 6. I917.

Patented May 7,1918.

2 SHEETS 11 (1H0: no 1 8.

E. T. SINCLAIR.

ATTACHMENT FOR INTERNAL COMBUSTION. ENGINES APPLICATION FILED MAR. e. 19H.

1,265,268. Patented May 7,1918.

2 5HEE TSSHEET 2.

' Qnomdog EDWARD 'r. silver/Armor OKLAHOMA. OKLAHOMA.

ATTACHMENT FOR IN TERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented May 7, 1918.

Application filed March 6, 1917. 7 Serial No. 152,961.--

To all whom it may concern:

Be it known that' I, EDWARD T. SINCLAIR, a citizen of the United States of America residing at Oklahoma city, in the county oii Oklahoma and State of Oklahoma, have invented certain new and useful Improvements in Attachments for Internal-Combustion Engines, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to an attachment for internal combustion engines and has for its principal object the productionof a device which will automatically maintain an approximate even temperature in the cylinder' of the engine.

Another object of this invention is the; production of an attachment for internal combustion engines wherein as the heat from the cylinder rises beyond a predetermined temperature, an automatic device will be operated for causing water to be injected intothe cylinder so that at the time of the explosion within the cylinder the water will be vaporized, thus causing the impulse of the steam to add to the force of the gas explosion while the steam will also reduce the temperature of the cylinder.

Another object of this invention is the production of an attachment for internal combustion engines wherein an adjustable thermostatic device is provided for automatically reducing the supply of gas from the carburetor and at the same time opening to bedrawn into the manifold of the engine.

With these and other objects in view, this invention consists in general of certain novel combinations, constructions and 1 arran ements of parts,.as will be hereinafter ful described and claimed.

In the accompanying drawings Figure 1 is an elevation of the attachment showing the same mounted upon an engine ind illustrating the structure in condition or use.

' Fig; 2 is a central vertical section through the needle 1n connection the water reservoir illustratin valve and manifold valve used therewith.

Fig; 3 is an enlarged vertical section taken on the line 3-3of Fig. 1.

. Fig. 4 is an elevation of the upper end ofthe thermostat rod showing the capmounted thereon in section.

Fig. 5 is a section taken on the line 5+5 of Fig. 1 looking in the direction of the arrow. a

. Fig. 6 is a section taken on the line 6-6 of Fig. 3.

Fig. '7 is an enlarged detail perspective view of the finger and shaft thereof used in connection with the thermostat rod. Fig. 8 is an enlarged horizontal section taken on the line 8-8 of Fig. 2.

Fig. 9 's a detail perspective view of the plate leve r.

Referring to the accompanying drawings by numerals, it will be seen that the attachment is adapted to be used in connection with an engine, as shown in Fig. 1, wherein the cylinder 1 is provided with a piston 2.

The usual water jacket 3 is carried upon the outer portions of the cylinder 1 so as to permit water carried within the jacket3 to exert its cooling influence upon the cylinder 1 in the usual manner; Theintake valve 4 communicates with the interior ofthe cyl inder 1 as does the exhaust valve 5. These valves may be operated in any suitable manner such, for instance, as a mechanical operating mechanism not deemed necessary for disclosure in the present application. Only.

. usual manner.

The water jacket 3 is provided with an opening 10 formed upon its upper side, as shown 1n Fig. '1, which opening 10 is normallyclosed by the plate 11 which is retained in a .set position by set screws 12. The

'rectangular frame 13 extends into the water with feet 14 which bear upon the inner surface of the plate 11. Retaining bolts 15 pass through the feet 14 and the plate 11, and also project through the base 16 of the bracket 17 for fixedly retaining these elements in engagement with each other.

The thermostat 18 as shown in Figs. 1 and 5 is formed of the usual mercury wafers although, of course, it is obvious any form of thermostat may be employed in connection with this invention. The thermostat rod 19 is fixedly carried as indicated at 20 upon the upper portion of the thermostat 18 and this rod 19 projects through the plate 11. The

upper end of this rod 19 is externally.

threaded as shown at 21, and carries thereon the internally threaded cap 22. This cap 22 is retained in an adjusted set position by means of the set screw 23 which passes therethrough and binds upon the rod 19, as clearly shown in Fig. 4.

By the adjustment of the cap 22 upon the externally threaded upper end of the rod 19, the length of this rod may be increased or decreased as desired.

The shaft 24 has one end journaled in'the upper end of the bracket 17 while its opposite end projects through the manifold 6 for purposes to be hereinafter set forth. The end of the rod 24 which projects through the outer end of the bracket 17 is externally threaded as shown at 25 so as to permit the finger 26 to be mounted thereon, as shown clearly in Fig.7. The coil spring 27 engages the finger 26 at one end and this coil spring 27 is also connected toone of the bolts 15 for normally urging the finger 26 in'one direction and in this manner urge the shaft 24 in a like direction.

It will be seen by referring particularly to Fig. 5 that the finger 26 projects above the upper end of the cap 22of the thermostat rod 19 so as to be-in the path of movement 0 this cap. As a consequence, when the thermostat 18 expands due to the heat within the water jacket, the rod 19 will move upwardly, causing the cap 22 to engage the finger 26 and swing the same upwardl for purposes to be hereinafter set. forth. t is, of course, obvious that as the temperature within the water jacket decreases, the thermostat 18 will contract, thus causing the rod 19 to move downwardly while the finger 26 will be returned to its normal position by the action of the spring 27 .shown in Figs. valve 28 is provided with the depres- The gate valve 28 is shrunk or otherwise secured upon the portion of the shaft 24 which projects through the manifold 6 as 2 and 3. This gate sion 29 having one straight side 30, as shown in Fig. 6. The stem 31 has itsupper end projecting into the depression 29 so as to be carried upon the screw'32. This projecting end of the stem 31 will bear upon the straight side 30 of the depression 29 so as to have free pivotal movement upon the straight side as the gate valve 28 is moved by the shaft 24.

The needle valve 33 is fixedly carried upon the lower end of the stem 31 for purposes to be hereinafter set forth.

- The water reservoir 34 is carried in any suitable manner adjacent the manifold 6 as shown clearly in Fig. 2. The pipe 35 leads from the lower portions of this reservoir 34 and projects into themanifold 6. This pipe 35 terminates in an upwardly-extending portion 36 which constitutes at 37 a valve seat. A- needle valve 33 normally rests upon this valve seat 37 as shown in Fig. 2, for preventing the passage .of water from the reservoir 34 into the manifold 6. A valve housing 38 projects from one side of the reservoir 34 and has the externally threaded pipe portion 39 projecting from this valve housing 38. A supply pipe 40 is connected by means of a cap 41 to the outer end of the .pipe portion 39 and this pipe 40 is in turn connected to the water acket 3 of the engine, (nto any other suitable source of supply desired.

The'valve lever 41 is pivotally mounted upon the reservoir 34 by means of the pin 42 which is carried by the valve housing 38 as clearly shown in Fig. 2 and 8. The upper end of this lever 41 is pivotally connected, as indicated at 43, to the needle valve 44 which projects normally into the pipe portion. 39 for. limiting the passage of water into the reservoir34. The remaining end of the lever 40 is provided with a ball portion '45 which bears at all times upon the float46,

carried within the reservoir 34.

When this attachment is employed upon an engine and the engine is started, it will assume normally the positions disclosed in Figs. 1,2, and 8. It is, of course, obvious that at this time the passage through the manifold 6 will be. unobstructed so as to cause pure gas to be drawn into the cylinder 1 of the engine for running the same. After the engine has been run for a short while, it is obvious the heat caused by explosions in cylinder 1 will heat water in the jacket 3 and as a consequence the expansion of the ther- 1,2ea,aes

stat 18 will be expandedto such a degree as to cause the cap 22 to engage the finger 26. Continued'upper movement of the rod 19 will cause'the finger 26 to be swung upwardly against the tension of the spring 27.-

The upwaid springing movement of the finger 26 will cause the shaft 24 to be turned gradually, thus movin the gate valve carried within the mani oldv toward a closed position, and also lift the needle valve 33 engaging the valve seat 37 If the heat of the Water'vvithin the jacket continues above the predetermined point, it is obvious that the upper end of the cap 22 will finally swing the finger 26 high enough and far enough to one side so as to permit the cap to move forwardly beyond the finger. Such action, however, will of course lock the finger in a position to retain the gate valve 27 in a closed position and hold the needle valve 33 from engagement with the seat 37. As has been already set forth, as the temperature of the water within the jacket 3 decreases, the thermostat will contract and cause the rod 19 and the cap 22 to move downwardl thus causing the spring 27 to return the nger to its normal position, thus shiftin the shaft 24 in the opposite direction with respect to the direction in which the shaft has been just turned.

As the gate'va'lve 28 is swung. toward a closed position by the shifting of the shaft 24, the supply of gas through the manifold 6 from the carbureter will be gradually decreased in volume until it is practically entirely cut off if the heat in the cylinder of the engine reaches a very high degree. As the ate valve is being moved toward a closed position, it is obvious that the stem 31 will be lifted owing to its pivotal engagement with the depression 29 of the gate valve, thus lifting the needle valve 33 from its engagement with the valve seat 37. As soon as the needle valve is lifted, it is obvious-water from the reservoir 34 will pass through the pipe 35 into the manifold 6 so as to be drawn, together with the gas passing through the manifold, into the cylinder 1 of the engine. At the time the gas is exploded in the usual manner, the water which has been drawn into the cylinder will be vaporized so as to allow the steam to addits impulse to the lighter gas charge due to the reducing of the gas passing through the manifold, and this steam, owingto its lower temperature, will also exert its cooling influence upon the cylinder 1 of the engine. This continued water charge-with each explosion within the cylinder will cause the heat in the cylinder to be decreased, thus lowering the temperature of the water in the jacket 3. As the water passes through the reservoir lever 41 to swing inwardly so as to move the action will let water from the supply pipe 40 pass into the reservoir 34 for supplyin the reservoir with water. As the depth 0 water within the reservoir increases, the float 46 will ,be lifted'so as to move the ball 45 upward, thus swinging the upper end of the lever 41 outwardly for forcing the nee,- dle valve into engagement with the inner end of the pipe portion 39 for cutting oifthe passa e of water from the'supply pipe 40 into t e reservoir 34. As soon as the term perature of the water in the jacket has de creased below the degree'necessary for holding the thermostat 18 in an expanded condition, the finger will be allowed to return to 'its 'nornfal position, thus shifting the shaft 24 for moving the gate valve 28 toward an open position for allowing greater quanties of gas to be drawn through the manifold 6. At the time the gate valve is moved toward an open position as shown in Fig. 3,"

From the foregoin description it will be seen that a very e cient attachment has i been provided for an internal combustion engine which will automatically reduce the passing of gas charges through the manifold to the cylinder of the engine, and willat the same time automatically interject water into the as charges for producing a highly combustihle substance which will in addition to adding strength to the charge for driving the piston 2, will also cool the cylinder for. maintaining a comparatively even temperature in the operation of the engine.

What is claimed is 1. In adevice of the class described, the combination of an engine cylinder havin a water jacket mounted thereon, a manifold connected to said cylinder, -a gate valve positioned within said manifold, a Water valve carried within said manifold," means connected to said gate valve for simultaneously operating said water valve as said gate valve is moved, and thermostatic means carried by said water jacket for automatically operating said gate valve.

2. In a device of the class described, the

combination of an en 'ne cylinder having a .water jacket mounte thereon, a manifold connected to said cylinder, a frame carried within said water jacket, a thermostat carried upon said frame, a rod carried'upon' said thermostat, said thermostat bein adapted to expand as the temperature 0 water within said jacket increases, a shaft' carried upon said water jacket, a fingercarried by said shaft, ad ustable means carried ing-f-rom said reservoir and upon the outer end of said rod for engaging said finger whereby said shaft may be turned, a gate valve carried within sa1d manifold, said shaft engaging said gate valve for operating the same as said finger turns said shaft, and means cooperating with said gate valve for interjecting water into said'manifold.

3. In a device of the class described, the combination of an engine, a manifold communicating with said engine, a reservoir carried upon said manifold a pipe projectextending into said manifold, a float carried upon said reservoir, alever pivotallymounted upon said reservoir and bearing upon said float, supply -means communicating with said reservoir, a needle valve engaging said supply means, said needle valve being pivotally mounted upon said lever, said float being adapted to move said lever for cutting off the supply of water into said reservoir or permitting water to pass into said reservoir,

thermostatic means carried upon said engine, a shaft automatically operated by said thermostatic means, and means connected to said shaft. and carried within said manifold for gradually decreasing the supply of gas through said manifold and permitting the injection of water from'said reservoir into said manifold as the temperature at the thermostat rises.

4. In a device of the class described, the

combination of an engine cylinder having a water jacket mounted thereon, a manifold connected to said cylinder, a frame carried within said water jacket, a thermostat carried upon said frame, a rod carried upon said thermostat, said thermostat being adapted to expand as thertemperature of water within said jacket increases, a shaft carried upon said water jacket, a finger carried by said shaft, said rod being adapted to move said fingerwhereby said shaft may be turned, a gate valve carried within said manifold said shaft engaging said gate valve for operating the same as said finger turns said shaft, and means cooperating with said gate valve for interjecting water into said manifold.

5. In a device of.the class described, the combination of an engine cylinder having a water jacket mounted thereon, a -manifold connected to said cylinder, a frame carried within said'water jacket, a thermostat carried upon said, frame, a rod-carried upon said thermostat, said thermostat being adapted to expand'as the temperature of water within said jacket increases, a shaft carried upon said water jacket, a finger carried by said, shaft, said--rod being adapted to move upwardly as said thermostat expands for moving said finger and turning said shaft, a valve means carried within said manifold for regulating the passage of gas sitioned within said manifold, a water pipe projecting into said manifold, a needle valve carried by said gate valve and normally extending into said pipe for preventing the passage of water from said pipe, and thermostatic means carried by said water jacket for automatically operating said gate valve thereby causing said needle valve to be opera-ted.

7. In a device of the class described, the combination of an en ine cylinder having a Water jacket mounted thereon, a manifold connected to said cylinder, a gate valve positioned Within said manifold, said gate valve having a depression formed therein, a

water pipe projected into said manifold and having a valve seat, a needle valve fitted upon said seat, a stem projecting from said needle valve and extending into said depression, means for pivotally connecting said stem to said gate valve within said depression and-thermostatic means carried by said waterjacket for automatically moving said gate valve whereby said stem will be moved so as to regulate the movement of said needle valve upon said valve seat.

8. In a device of the class described, the combination of an engine cylinder having a water jacket mounted thereon, a manifold connected to said cylinder, a frame carried within said water jacket, a thermostat carried by said frame, a rod carried upon said thermostat, said thermostat being adapted to expand as temperature within said jacket increases, a bracket carried upon said water jacket, a shaft 'oivotally mounted upon said bracket and said manifold, a finger keved upon one end of said shaft, an adjustable .cap carried upon said rod, a spring connectconnected to said cylinder, a frame carried within said water jacket, a thermostat carried by sa1d frame, a rod carried upon said thermostat, said thermostat being adapted to expand as the temperature of water within said jacket increases, a bracket carried upon said jacket, a shaft pivotally mounted upon said bracket and said manifold, a finger keyed upon said shaft, means for normally urging saidfinger in one direction, an adjustable ca mounted u on said rod, said thermostat eing adapte to lift said rod whereby said cap will engage said finger,

for turning said shaft, a gate valve positioned within said manifold, said gate valve having a depression, a water pipe projecting into said manifold, and same pivotally mounted within said depression and termlnated at its lower end in a needle valve, said needle valve being adapted to project intosaid pipe, said shaft being adapted to turn said gate valve, and move said needle valve so as to regulate the passage of gas through said manifold and permitting the injection of Water thereinto.

In testimony whereof I hereunto aflix my signature.

EDWARD 'r. SINCLAIR. 

